CN103375323A - Starter - Google Patents

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Publication number
CN103375323A
CN103375323A CN2013102390394A CN201310239039A CN103375323A CN 103375323 A CN103375323 A CN 103375323A CN 2013102390394 A CN2013102390394 A CN 2013102390394A CN 201310239039 A CN201310239039 A CN 201310239039A CN 103375323 A CN103375323 A CN 103375323A
Authority
CN
China
Prior art keywords
motor
starter motor
gear ring
transmission
small gear
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN2013102390394A
Other languages
Chinese (zh)
Other versions
CN103375323B (en
Inventor
石井幸二
西田龙己
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Hitachi Astemo Ltd
Original Assignee
Hitachi Ltd
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Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Publication of CN103375323A publication Critical patent/CN103375323A/en
Application granted granted Critical
Publication of CN103375323B publication Critical patent/CN103375323B/en
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Anticipated expiration legal-status Critical

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02NSTARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N15/00Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
    • F02N15/02Gearing between starting-engines and started engines; Engagement or disengagement thereof
    • F02N15/04Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears
    • F02N15/06Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the toothed gears being moved by axial displacement
    • F02N15/062Starter drives
    • F02N15/065Starter drives with blocking means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02NSTARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00Starting of engines by means of electric motors
    • F02N11/08Circuits or control means specially adapted for starting of engines
    • F02N11/0851Circuits or control means specially adapted for starting of engines characterised by means for controlling the engagement or disengagement between engine and starter, e.g. meshing of pinion and engine gear
    • F02N11/0855Circuits or control means specially adapted for starting of engines characterised by means for controlling the engagement or disengagement between engine and starter, e.g. meshing of pinion and engine gear during engine shutdown or after engine stop before start command, e.g. pre-engagement of pinion
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02NSTARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00Starting of engines by means of electric motors
    • F02N11/08Circuits or control means specially adapted for starting of engines
    • F02N11/087Details of the switching means in starting circuits, e.g. relays or electronic switches
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02NSTARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00Starting of engines by means of electric motors
    • F02N11/04Starting of engines by means of electric motors the motors being associated with current generators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02NSTARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00Starting of engines by means of electric motors
    • F02N11/08Circuits or control means specially adapted for starting of engines
    • F02N11/0814Circuits or control means specially adapted for starting of engines comprising means for controlling automatic idle-start-stop
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02NSTARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N19/00Starting aids for combustion engines, not otherwise provided for
    • F02N19/005Aiding engine start by starting from a predetermined position, e.g. pre-positioning or reverse rotation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02NSTARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N19/00Starting aids for combustion engines, not otherwise provided for
    • F02N19/005Aiding engine start by starting from a predetermined position, e.g. pre-positioning or reverse rotation
    • F02N2019/008Aiding engine start by starting from a predetermined position, e.g. pre-positioning or reverse rotation the engine being stopped in a particular position
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02NSTARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N2200/00Parameters used for control of starting apparatus
    • F02N2200/04Parameters used for control of starting apparatus said parameters being related to the starter motor
    • F02N2200/047Information about pinion position

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
  • Gear Transmission (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

The present invention provides a starter capable of keeping a state where a pinion and a ring gear maintain meshing with each other when an engine stops without providing a plunger stopper using a solenoid or the like. The state where the pinion and the ring gear maintain meshing with each other in the engine stop mode continues by movement resistance which occurs when a torque transmission member moves. Concretely, an inclination angle of a helical spline in a helical spline engagement part is set so that the above state continues. The helical spline engagement part is a part where a helical spline on the outer periphery of an output shaft of a starter motor and a helical spline on the inner periphery of the torque transmission member mesh with each. Consequently, the above state continues without a plunger stopper using a solenoid or the like.

Description

Starter motor
The application's dividing an application for the application of " starter motor " that be application number 200710160125.0, December 24 2007 applying date, denomination of invention.
Technical field
The present invention relates to a kind of starter motor be used to piloting engine.
Background technique
Advance over year, in order to reduce the waste gas of automobile, make engine stop when motor is in idling conditions, the automobile that has without idle running (idling stop) function of again piloting engine when vehicle advances increases gradually.In having this automobile without lost motion functionality, when again piloting engine, must drive starter motor, but starter motor need to be to being used for connecting the magnet contactor energising of starter motor motor and battery, utilize the driving force of this magnet contactor, make small gear to gear ring (ring gear) side shifting of transmission of power to the engine crankshaft axle, meanwhile, make the rotation of starter motor motor, make the engagement of small gear and gear ring.So, exist until the restarting spended time, can not realize the problem of quick starting of motor.Particularly in the situation of colliding under the state that small gear and gear ring can not mesh, start more spended time.
Therefore, for solving such problem, considered the starter motor shown in patent documentation 1.In patent documentation 1, by at engine stop rear driving magnet contactor, and then by the plunger by plunger stopper (plunger stoper) holding magnet switch, keep the state of small gear and gear ring engagement with this, thereby shorten the time of restarting of motor.
Patent documentation 1: TOHKEMY 2000-45920 communique
But in patent documentation 1, only for the plunger of holding magnet switch, just be provided with the plunger stopper that is consisted of by solenoid.So there is the bad problem of outfit property.
Summary of the invention
The object of the present invention is to provide the solenoidal plunger stopper of a kind of not setup and use, when engine stop, can keep the starter motor of the state of small gear and gear ring engagement.
Starter motor of the present invention is characterised in that: utilize the moving resistance that produces when the transmission of power body moves, maintain the state of small gear and gear ring engagement under the engine stop-state.
In addition, starter motor of the present invention is characterised in that: at the periphery of output shaft and transmission of power body the helical spline engagement portion is set interior week, with the angle of inclination of the helical spline in this helical spline engagement portion, be made as the size of when engine stop, keeping small gear and gear ring engagement.
In addition, starter motor of the present invention is characterised in that: after the rotation of the bent axle of motor stops fully, to the electromagnetic drive mechanism energising, the transmission of power body is moved, utilization is kept the state of small gear and gear ring engagement with respect to the reaction force of the movement of transmission of power body.
In addition, starter motor of the present invention is characterised in that: under the state of small gear and gear ring engagement, in compression stroke, be in lower dead center during the top dead center at piston, make engine stop.
The invention effect
According to the present invention, not be used in solenoid is installed on the magnet contactor in addition, keep the state of small gear and gear ring engagement when just can be implemented in engine stop.Therefore, can improve assembling.
Description of drawings
Fig. 1 is the side cross-sectional views of the starter motor under the engine start state among the first embodiment;
Fig. 2 is the side cross-sectional views of the starter motor after motor just stops among the first embodiment;
Fig. 3 be among the first embodiment behind the engine stop through the side cross-sectional views of the starter motor of stipulated time;
Fig. 4 is the figure of the circuit of the starter motor among expression the first embodiment;
Fig. 5 is the enlarged view of the transmission of power body among the first embodiment;
Fig. 6 is the A-A sectional view of Fig. 5;
Fig. 7 is the control flow chart behind the engine stop among the first embodiment;
Fig. 8 is the control flow chart of the motor among the first embodiment when restarting;
Fig. 9 is the figure of the circuit of the starter motor among expression the second embodiment;
Figure 10 is the control flow chart behind the engine stop among the second embodiment;
Figure 11 is the control flow chart of the motor among the second embodiment when restarting;
Figure 12 is the figure of circuit of starter motor of expression the second embodiment's variation.
Among the figure:
1-starter motor motor; 2-transmission of power body; The 3-electromagnetic drive mechanism; The 4-cancel system; 5-controller (control mechanism); 6-gear ring (ring gear); The 7-magnet contactor; 8-the second magnet contactor; The 17-output shaft; The 21-base portion; The 22-small gear; 23-roller (one direction clutch mechanism); 24-the second helical spline (helical spline engagement portion); The 31-solenoid; The 32-controlling rod; The 33-movable core; The 34-stator core; The 35-solenoid; 81-the second relay; 82-the second solenoid; 83-the second solenoid; 112-the first helical spline (helical spline engagement portion)
Embodiment
[the first embodiment]
Below, with reference to Fig. 1~Fig. 8 the starter motor of the first embodiment of the present invention is described.Fig. 1 is the side cross-sectional views of the starter motor under the engine start state.Fig. 2 is the side cross-sectional views of the starter motor after motor just stops.Fig. 3 be from engine stop to after through the side cross-sectional views of the starter motor of stipulated time.Fig. 4 is the figure of the circuit of expression starter motor.Fig. 5 is the enlarged view of transmission of power body.Fig. 6 is the A-A sectional view of Fig. 5.Fig. 7 is the control flow chart behind the engine stop.Fig. 8 is the control flow chart of motor when restarting.
Fig. 1~starter motor shown in Figure 3 is to receive the electric power supply from the battery that carries on automobile, produces the starting arrangement for the rotary driving force of piloting engine.In addition, be equipped with the automobile of the starter motor of present embodiment, under the state of vehicle stop, be at the rotating speed of motor in the situation of state continuance stipulated time of racing speed, have make engine stop without lost motion functionality.Have this automobile without lost motion functionality because when setting out, must again pilot engine at every turn, so with do not compare without the general automobile of lost motion functionality, the frequency that drives starter motor is high especially.
Starter motor comprises: thus when piloting engine, produce rotary driving force starter motor motor 1, will intermittently pass to from the rotary driving force of this starter motor motor 1 the transmission of power body 2 that starts pusher side, be used for making these transmission of power body 2 actions to motor transmit rotary driving force electromagnetic drive mechanism 3, be used for making transmission of power body 2 not transmit rotary driving force and the cancel system 4 that moves and as the controller 5 of the control mechanism of control electromagnetic drive mechanism 3 to motor.
Starter motor motor 1 adopts direct current motor, has: by a plurality of slits 11 interior coilings that arrange at Zhou Fangxiang the rotor 13 that the rotor coil 12 of a plurality of phases consists of is installed; And be oppositely arranged at periphery and the rotor 13 of rotor 13, the stator cylindraceous 14 of a plurality of permanent magnets is installed in the mode that alternately forms different magnetic poles at Zhou Fangxiang.
As shown in Figure 1, at the axial one distolateral rear portion bracket 15 that is provided with bottom tube-like of stator 14, outstanding and have an anterior bracket 16 of opening portion at this projection in the distolateral part that is equipped with of axial another.
In addition, be provided with the output shaft 17 of fixing in the mode of one rotation at rotor 13, this output shaft 17, one end supports by the fore bearing 18 on the projection front end that is arranged on anterior bracket 16 and rotates freely, the other end rotate freely by rear bearings supporting, and described rear bearings is arranged on from rear portion bracket 15 bottoms on the side-prominent holding part of interior all side direction front portion of rotor 13 bracket 16 1.And anterior bearing 18 and rear bearings are made of sliding bearing.
Outer circumferential side at the rear bearing that supports output shaft 17 is provided with a plurality of rectifiers that separate 19 at Zhou Fangxiang, and the brush 111 that is fixed in the brush carriage on the rear portion bracket 15 contacts with this rectifier 19 with the state that is biased.Because this brush 111 is connected with battery B, rectifier 19 is connected with rotor coil 12, so can realize supplying with electric currents from the battery B of outside to rotor coil 12 by brush 111 and rectifier 19.For this reason, a plurality of magnetic poles on the Zhou Fangxiang of rotor 13, have also been formed.
In addition, anterior bracket 16 sides of output shaft 17 extend to fore bearing 18 always, spread all over specific length from the axial end of rotor 13 and form the first helical spline 112 at outer circumferential face.And, at the front end of output shaft 17, be adjacent to be formed with annular slot with fore bearing 18, in this annular slot, encircle the fixedly stopper 113 of ring-type with C shape.
The below describes transmission of power body 2.Base portion 21 and small gear 22 that this transmission of power body 2 is arranged by the periphery at anterior bracket 16 bottom sides of output shaft 17, and be arranged on the one direction clutch mechanism formation that the parts such as roller 23 of base portion 21 and 22 of small gears consist of.
Base portion 21 is cylindric, and is being provided with the second helical spline 24 interior week, this second helical spline 24 is set is for being meshed with the first helical spline 112, and this second helical spline 24 begins to form through specific length from axial rotor 13 sides.Consist of the helical spline engagement portion by the first such helical spline 112 and the second helical spline 24.Be formed with the groove of ring-type at the outer circumferential side of anterior bracket 16 sides of the second helical spline 24, discoideus lip part 25 is installed in the groove of this ring-type.And anterior bracket 16 bottom sides of base portion 21 form large footpath, are formed with the clutch containing space that can accommodate the one direction clutch mechanism in the inside of this large-diameter portion.The base portion 21 that forms like this can reverse along the helical spline engagement portion on one side with respect to output shaft 17, Yi Bian mobile vertically.
Small gear 22 is also the same with base portion 21 to have a hole of accommodating output shaft 17, can be mobile in the axial direction along output shaft 17.Axial end portion periphery in fore bearing 18 sides of this small gear 22 is formed with pinion gear teeth, and the axial end portion of rotor 13 sides is inserted in the clutch containing space of base portion 21.And, pinion gear teeth one side of the part that is inserted into base portion 21 on small gear 22 is provided with the groove of annular, the discoideus fixed plate 26 that in this circular groove, arranges, by by in fixing fixed component 27 clampings of the periphery of the large-diameter portion of base portion 21, thereby, small gear 22 and base portion 21 along output shaft 17 in the axial direction one move.Small gear 22 is with base portion 21 formation one and to fore bearing 18 side shiftings if so, and then small gear can be meshed with the gear ring 6 on the bent axle that is connected in motor.And, small gear 22, by being connected at the fixing stopper 113 of output shaft 17, thereby axial movement is restricted.And, be provided with detect small gear 22 whether with stopper 113 butts, namely detect the detection device 78 whether pinion gear teeth is meshed with gear ring 6, in the situation of small gear 22 and stopper 113 butts, to controller 5 output signals.So, under the state that moving axially of transmission of power body 2 is restricted, for the rotary driving force with output shaft 17 passes to gear ring 6 tooth of helical spline engagement portion is tilted.
In addition, by being used for various parts such as roller 23 with one direction clutch function in small gear 22 and 21 insertions of base portion, thereby consist of the one direction clutch.Therefore, on the driving sense of rotation of output shaft 17, can 22 transmission rotate from base portion 21 to small gear, but can not transmit rotation in the other direction.By this formation, when the rotating speed of gear ring 6 surpasses the rotating speed of small gear 22, although the rotating force of gear ring 6 does not transmit to base portion 21, even but under the effect of one direction clutch, do not transmit the rotation of gear ring 6 and produce under the state that skids, because effect has to a certain degree slip resistance, thus base portion 21 also be subjected to small gear 22 rotations impact and with low speed rotation.Therefore, base portion 21 and small gear 22 by the effect of helical spline engagement portion, move to the direction of separating from gear ring 6, thereby remove the engagement of pinion gear teeth and gear ring 6.Like this, by helical spline engagement portion and one direction clutch, consisted of when the rotating speed of gear ring 6 surpasses the rotating speed of small gear 22, removed the cancel system 4 of the engagement of pinion gear teeth and gear ring 6.
The below describes electromagnetic drive mechanism 3.Electromagnetic drive mechanism 3 is made of solenoid 31 and controlling rod 32.Solenoid 31 and almost abreast adjacent setting of starter motor motor 1 are made of movable core 33, stator core 34 and solenoid 35.Movable core 33 constitutes the approximate circle tubular at the end, be positioned at and the opening end of bottom in the opposite side of axle direction, form the tapering in large footpath towards end face, in the hollow portion of movable core 33, be inserted with the first helical spring 36, this first helical spring 36 is used for movable core 33 is returned to controlling rod 32 1 sides as force application mechanism.In addition, be fixed with controlling rod insertion portion 38 in the axial outside of the bottom of movable core 33, these controlling rod insertion portion 38 upper sheds have controlling rod inserting hole 37, and this controlling rod insertion portion 38 can move with movable core 33 one.The controlling rod 32 that inserts in controlling rod inserting hole 37 is designed to and can swings centered by fulcrum 311 under the state of interior all sides of being pushed to anterior bracket 16 by spring 39.One end of this controlling rod 32 is inserted into controlling rod inserting hole 37 with the state that keeps the gap, the other end, can with the base portion 21 of transmission of power body 2 on the axial sides butt of rotor 13 sides of large-diameter portion.Therefore, if controlling rod 32 is followed the movement of movable core 33 and swung, then have in 2 effects of transmission of power body to make it to the power of gear ring 6 one side shiftings.And, the part of the insertion controlling rod inserting hole 37 of controlling rod 32 and with the part of base portion 21 butts, form the such Leaves'Shape of arc surface.
In the periphery of movable core 33, dispose the solenoid 35 of reeling at the bobbin that is consisted of by nonmagnetic materials such as resins, and solenoid 35 is housed in the inside of the yoke that bottom tube-like is arranged 312 that is made of magnetic.And, have the hole in the axle central position of yoke 312 bottoms, inserting movable core 33 in the mode of sliding freely in interior week of this hole and bobbin.
At the bottom of yoke 312 and the opening end of axial opposed side, be fixed with stator core 34.This stator core 34 has in the axle central position to outstanding protuberance of the interior week of solenoid 35, and it is poor that peripheral part is fixed at the ladder of the opening end formation of yoke 42.In addition, front end at the protuberance of stator core 34, be provided with the conoid protuberance of the front end tapered shape that the tapering with movable core 33 coincide substantially, and the end face at this conoid protuberance, form the through hole of inserting logical contact described later axle 71, be useful on the first helical spring 36 that movable core 33 is returned at its outside butt.
The below describes the magnet contactor 7 that will switch on state and nonconducting state between starter motor motor 1 and battery B.Magnet contactor 7 drives by electromagnetic drive mechanism 3.Specifically, in the through hole that the end face of the conoid protuberance of stator core 34 forms, have with respect to stator core 34 and insert sliding freely the contact axle 71 led to, this contact axle 71 can insert in the hollow portion of movable core 33, and disposes the first helical spring 36 in periphery.In addition, on the end with respect to the opposition side of movable core 33 sides of contact axle 71, the method by riveted joint is fixed with the first circular spring bearing piece 72, and it is poor to be provided with the stage with large-diameter portion and minor diameter part on this first spring bearing piece 72.In addition, in movable core 33 sides of this first spring bearing piece 72, dispose the discoideus moving contact 73 that is consisted of by conductive material that is used to form the contact.And at the second spring bearing piece 74 that is fixed with in interior week of this moving contact 73, this second spring bearing piece 74 can be mobile in the axial direction along the periphery of contact axle 71 with moving contact 73.
At the second spring bearing piece 74 with form in the periphery of contact axle 71 between the circular protrusion 75 of annular, be provided with the second helical spring 76, under the state of the effect that is not subjected to any load on the moving contact 73, moving contact 73 and the second spring bearing piece 74 are under the effect of the second helical spring 76, formation is by the state of pressing to 72 1 thrusters of the first spring bearing piece, if but at the axial load of oriented moving contact 33 1 sides of moving contact 73 effect, then with respect to contact axle 71, moving contact 73 and the second spring bearing piece 74 overcome the active force of the second helical spring 76 and move vertically.In addition, between the first spring bearing piece 72 and contact described later housing 711, be provided with triple helical spring 77, contact axle 71 is urged to movable core 33 1 sides.
The below describes the switch part that is provided with the fixed contact of moving contact 73 butts.Switch part is made of following: at the opening end of yoke 312 with stator core 34 by the fixing contact housing 711 of riveted joint, the battery side fixed contact 712 that is connected with battery B on being fixed on contact housing 711 and the motor side fixed contact 713 that is connected with the rotor coil 12 of starter motor motor 1.
In addition, contact housing 711 is by nonmagnetic material and be the shape that the resin material of insulating material forms round-ended cylinder, be provided with the circular concavity pedestal part of an end that inserts triple helical spring 77 in the position at general center, edge of opening in this pedestal part is formed with the conical surface, and this conical surface is used for insertion and the bending of auxiliary triple helical spring 77.
Below in conjunction with Fig. 4 the circuit of starter motor is described.Between battery B and solenoid 35, be provided with the relay 51 of switched conductive state and nonconducting state, this relay 51 is according to coming the output signal of self-controller 5 to move.And battery B also is connected with battery side fixed contact 712 in the magnet contactor 7, because moving contact 73 is movable, so battery side fixed contact 712 and motor side fixed contact 713 also couple together.And, motor side fixed contact 713 is because be connected with the rotor coil 12 of starter motor motor 1, so if battery side fixed contact 712 is connected connection with the motor side fixed contact, then 12 provide electric current from battery B to rotor coil, thereby drive starter motor motor 1.
The below describes the action of starter motor.At first, when motor is in operating state, because relay shown in Figure 4 51 is in nonconducting state, so do not supply with electric current to solenoid 35, owing to do not have attraction force acts in movable core 33, so movable core 33 is urged to the direction of leaving stator core 34 as shown in Figure 1 under the effect of the first helical spring 36.Thus, be inserted in the controlling rod 32 in the controlling rod inserting hole 37 of the controlling rod insertion portion 38 that is fixed on the movable core 33, next distolateral being pressed of effect at movable core 33, large-diameter portion on the base portion 21 of another distolateral driven force carrier 2 leaves, and does not produce to make it to the power of gear ring 6 side shiftings on transmission of power body 2.And, because contact axle 71 also from movable core 33 separately, so contact axle 71 is subject to the active force of triple helical spring 77, keep to the state of movable core 33 side-prominent maximums, follow in this moving contact 73 and also separate with motor side fixed contact 713 from battery side fixed contact 712.So, do not supply with electric current to the rotor coil 12 of starter motor motor 1.
At this, when making engine stop, disconnect ignition switch in order to make engine stop or satisfying in the situation of condition without idle running of state continuance stipulated time that engine speed is racing speed, shown in the step S1 of Fig. 7, input the signal that makes engine stop to controller 5, enter step S2.
In step S2, judge whether to enter step S3 through until the stipulated time that motor stops fully being judged as in the situation of having passed through the stipulated time, be used for making relay 51 become the signal of on state from controller 5 outputs, make battery B and solenoid 35 become on state.Thus, be in solenoid 35 yoke 312, stator core 34, movable core 33 generation magnetic fluxs on every side, movable core 33 overcomes the application of force of the first helical spring 36 as shown in Figure 2, is attracted to stator core 34 sides.At this moment, movable core 33 is through stroke and contact axle 71 butts of established amount, and movable core 33 and contact axle 71 form one and move towards stator core 34.
In addition, if contact axle 71 moves, then moving contact 73 also with contact axle 71 together, move while compress triple helical spring 77, until battery side fixed contact 712 and motor side fixed contact 713 side butts.And, even moving contact 73 and battery side fixed contact 712 and motor side fixed contact 713 side butts, movable core 33 and contact axle 71 move while also compress the second helical spring 76, as shown in Figure 2, until the moment of movable core 33 and stator core 34 butts stop mobile.At this moment, moving contact 73, with respect to battery side fixed contact 712 and motor side fixed contact 713, effect has the elastic force of the part of compression the second helical spring 76, thereby makes moving contact 73 be connected to battery side fixed contact 712 and motor side fixed contact 713 under the effect of enough pressing forces.
And, if movable core 33 to stator core 34 side shiftings, then on the controlling rod 32 among the controlling rod inserting hole 37 that is inserted into the controlling rod insertion portion 38 that is fixed on the movable core 33, acts on the oscillatory forces that has centered by fulcrum 311.Therefore, transmission of power body 2 sides of controlling rod 32 with the side butt of the large-diameter portion of base portion 21, make transmission of power body 2 along the output shaft 17 of starter motor motor 1 to gear ring 6 side shiftings.At this moment, by by the first helical spline 112 and the helical spline engagement portion that the second helical spline 24 that is arranged at 21 interior weeks of base portion consists of that are arranged at output shaft 17 peripheries, while reversing to gear ring 6, moves transmission of power body 2.
At this, if the pinion gear teeth position of the position of the tooth of gear ring 6 and small gear 22 matches, then gear ring 6 is meshed with pinion gear teeth, under the state of stopper 113 and the front end butt of small gear 22, stop, in the situation that both misfit, under the side butt of small gear 22 and gear ring 6 and the state that is pressed, stop.At this moment, detect the whether detection device 78 of butt of small gear 22 and stopper 113 because be provided with, so in pinion gear teeth and situation that gear ring 6 is meshed, to controller 5 output signals, in step S4, be judged as the engagement of pinion gear teeth and gear ring 6.Here, in the situation of the signal that is meshed with gear ring 6 to controller 5 input pinion gear teeths, closed relay 51 at once in step S5, stop to solenoid 35 energisings, in the situation of the signal that is not meshed with gear ring 6 to controller 5 input small gears, continue to keep the state to solenoid 35 energisings.
Like this, in the situation of the signal that not output pinion tooth and gear ring 6 are meshed, battery side fixed contact 712 and motor side fixed contact 712 become on state by moving contact 73, therefore to rotor coil 12 energisings of starter motor motor 1, make rotor 13 and output shaft 17 rotations.At this moment, small gear 22 is also with output shaft 17 rotations, but the transmission of power body 2 that contains small gear 22, because become by controlling rod 32 by the state of pressing to gear ring 6 one sides, so in the moment that the tooth of the tooth of small gear and gear ring 6 matches, small gear 22 vertically mobile until with stopper 113 butts.By this effect signal that 5 output pinion teeth are meshed with gear ring 6 from detection device 78 to controller, enter immediately step S5 closed relay 51, stop to solenoid 35 energisings.In addition, if stop to solenoid 35 energisings, as shown in Figure 3, because moving contact 73 leaves from battery side fixed contact 712 and motor side fixed contact 713, so 12 of battery B and rotor coils become nonconducting state, starter motor motor 1 stops the rotation.
The application of force of movable core 33 this moment by the first helical spring 36 moves to the direction of leaving with stator core 34, follow in this controlling rod 32 and lip part 25 butts, effect has the power that transmission of power body 2 is returned to rotor 13 sides, but because the angle of the angle of inclination of the helical tooth in the helical spline engagement portion between the output shaft 17 of transmission of power body 2 and starter motor motor 1 for transmission of power body 2 is moved, so transmission of power body 2 is not mobile, the small gear of small gear 22 and gear ring 6 are kept the state of engagement.
Below in conjunction with Fig. 5 and Fig. 6 the establishing method of the tilt angle theta of the helical tooth of helical spline engagement portion is described.Length of action at the pinion gear teeth of establishing small gear 22 and gear ring 6 is L, and establishing and making transmission of power body 2 by the backlash in small gear 22 and 6 generations of gear ring mobile length to be in the situation of S, and the angle of getting the condition of the L that satisfies condition>S/tan θ gets final product.And, in order to keep the state of transmission of power body 2 engagement, thereby be necessary moving resistance or the reaction force of the angle of inclination of helical tooth and the cogging torque of starter motor motor 1, the frictional force of each slide part etc. are compared setting.
Even stop like this to solenoid 35 energisings, the pinion gear teeth of small gear 22 and gear ring 6 are also kept the state that is meshed, but because as shown in Figure 3, and the controlling rod inserting hole 37 of the controlling rod insertion portion 38 that is wholely set of movable core 33 and controlling rod 32 between be provided with the gap of regulation, so movable core 33 returns under the effect of the first helical spring 36 a little according to the state of Fig. 2, follow in this contact axle 71 and also return.So moving contact 73 leaves with respect to battery side fixed contact 712 and motor side fixed contact 712, battery B and solenoid 35 become nonconducting state.That is, under the state of engine stop, although the pinion gear teeth of small gear 22 is kept the state that is meshed with gear ring 6, do not supply with electric current to solenoid 35, rotor coil 12.
When wanting to make motor become again by starting from the state that stops, because the pinion gear teeth of small gear 22 is meshed with gear ring 6, so moving contact 73 direct and battery side fixed contact 712 and motor side fixed contact 712 butts, supply with electric current to rotor coil 12, make 1 rotation of starter motor motor.
According to the flow chart of Fig. 8 motor is described from halted state to starting again, motor is in halted state in step S6, in step S7 whether the ignition mechanism switch is connected and judges.In the situation of judging the ignition mechanism switch connection, enter step S9, input the signal that motor is restarted to controller 5.In addition, in step S7, in the situation of not judging the ignition mechanism switch connection, enter step S8, judge whether to satisfy the condition of removing without idle running.Satisfying in the situation about removing without dry run condition, enter step S9, not satisfying in the situation about removing without dry run condition, return step S6, keep the state of engine stop.And, as the condition of be used for removing without idle running, detecting the brake off device and depressing the state of accelerator, or in having the vehicle of clutch pedal, detecting in the situation of the state that has also depressed clutch pedal, be judged as and remove without idle running.
If the signal that to controller 5 inputs motor is restarted in step S9 then enters step S10 and opens relay 51.Therefore, moving contact 73 direct and battery side fixed contact 712 and motor side fixed contact 713 butts are supplied with electric currents to rotor coil 12 and are made 1 rotation of starter motor motor.
The below enters step S11, judges whether motor starts.Carrying to controller 5 in the situation of judging the signal that motor started, enter step S12, closed relay 51 becomes not the state of supplying with electric currents to solenoid 35 and rotor coil 12.In addition, in step S11, do not carry in the situation of judging the signal that motor started to controller 5, keep the state that relay 51 is opened.And the judgement of in step S11 whether motor having been started for example, consider to detect the rotating speed of motor,, is judged as motor and starts during the stipulated time at the state continuance of rotating speed more than the regulation rotating speed of motor.
Here, if pilot engine, the rotating speed of gear ring 6 surpasses the rotating speed of starter motor motor 1 sometimes, but because can absorb rotation by the one direction clutch that is arranged on the transmission of power body 2, so can not transmit driving direction and reciprocal rotating force to output shaft 17.But, even utilize the absorption of one direction clutch from the rotation of small gear 22, also because there is slip resistance in the slide part of one direction clutch, so along with the rotation of small gear 22 is also transmitted rotation by slip resistance to base portion 21.Therefore, base portion 21 and small gear 22 be because the true dip direction of helical spline engagement portion, move to the direction of the rotor 13 that leaves from gear ring 6, thereby the engagement of gear ring 6 and pinion gear teeth is disengaged.Consisted of the cancel system of removing the engagement of small gear 22 and gear ring 6 by the helical spline engagement portion like this.
More than the first embodiment's structure and action is illustrated, the below introduces the first embodiment's action effect.
The first embodiment is that it comprises be used to the starter motor of piloting engine: the starter motor motor, and this starter motor motor comes the rotation of driver output axle by supplying with electric current; Transmission of power body, this transmission of power body have the small gear that transmits rotating force from the output shaft of this starter motor motor, by movement gear ring and the described small gear of the power that transmits motor are intermittently meshed; Electromagnetic drive mechanism, this electromagnetic drive mechanism makes described transmission of power body move to the direction of described small gear and the engagement of described gear ring by energising; When cancel system, this cancel system surpass the rotating speed of described transmission of power body at the rotating speed of described gear ring, provide driving force that described transmission of power body is moved to the direction of the engagement of removing described small gear and described gear ring; Control mechanism, this control mechanism control are for the described electromagnetic drive mechanism that described transmission of power body is moved, so that form the state of described small gear and the engagement of described gear ring behind engine stop.Because by the moving resistance that when described transmission of power body moves, produces, under the state of engine stop, can keep the state of described small gear and described gear ring engagement, so can quick start engine, owing to do not need to reset the motor such as plunger stopper, so can reduce the price of device.And, because at starter motor the plunger stopper is not set with it originally, so can improve the outfit to vehicle yet.
In addition, between the base portion that transmits rotating force from the output shaft of described starter motor motor on the described transmission of power body and described small gear, be provided with the one direction clutch, this one direction clutch can only the direction from described base portion to described small gear transmit rotating force, because this one direction clutch also transmits rotation to described base portion by slip resistance from described small gear, so even the rotating speed of gear ring has surpassed the rotating speed of small gear, on the output shaft of starter motor motor, can not act on yet and make driving direction become reciprocal large active force.
In addition, described electromagnetic drive mechanism is because drive by magnet contactor, this magnet contactor is switched conductive state and nonconducting state between described starter motor motor and battery, so the electromagnetic drive mechanism that is made of solenoid etc. beyond the magnet contactor can be set.So, can reduce the price of device.
In addition, described electromagnetic drive mechanism is by movable core, fixed iron core and coil consist of, by described movable core because to the energising of described coil and to fixed iron core one side shifting, thereby controlling rod with described movable carrier by pressing to the direction that it is moved towards described gear ring, when stopping to described coil electricity, as long as described movable core and described transmission of power body apply electrically is subject to the locomotivity of a direction of the movable core of power of the direction returned or transmission of power body under action of reset spring, and needn't reset be used to the electric driver mechanism that returns original state.Therefore, reduced the price of device.
In addition, because described transmission of power body is arranged on the output shaft of described starter motor motor and slides, described cancel system is the helical spline engagement portion in the periphery setting of the output shaft of the interior week of described transmission of power body and described starter motor motor, so if the rotating speed of gear ring surpasses the rotating speed of small gear after the engine start, then the engagement of gear ring and pinion gear teeth can be untied automatically, does not therefore need new power source.Therefore, reduced the price of device.
In addition, because the first embodiment is used for without the idle running vehicle, so effect is obvious especially on the point that can restart fast motor.
In addition, the first embodiment is be used to the starter motor of piloting engine, and comprising: the starter motor motor, and this starter motor motor is driven in rotation by supplying with electric current; The transmission of power body, this transmission of power body is provided on the output shaft of the rotating force that transmits this starter motor motor and can slides, and have small gear in periphery, by sliding at described output shaft, can make the engagement of the gear ring of the power that transmits motor and described small gear interrupted; Solenoid, this solenoid makes described transmission of power body slide to the direction that described small gear and described gear ring are meshed by energising; The helical spline engagement portion, this helical spline engagement portion is arranged on the periphery of described output shaft and the interior week of described transmission of power body in the mode of respectively engagement, and inclination so that described small gear when under the effect of the driving force of described gear ring, rotate described transmission of power body to the direction slip away from described gear ring; Controller, this controller is controlled described solenoid, so that make described small gear and the engagement of described gear ring behind engine stop.Because keep the size of the state that described small gear and described gear ring be meshed when engine stop is arranged at the angle of inclination of the helical spline in the described helical spline engagement portion, set the angle of inclination of helical spline so only consider the slip resistance of the cogging torque of starter motor motor and each slide part, just can maintain gear ring under the engine stop-state and the engagement of small gear.And the tilt angle theta of described helical spline can be to be L in the length of action of establishing described small gear and described gear ring, establishes when making described transmission of power body can mobile length be S by backlash, satisfies the angle of L>S/tan θ condition.
In addition, the first embodiment is be used to the starter motor of piloting engine, and comprising: the starter motor motor, and this starter motor motor comes the rotation of driver output axle by supplying with electric current; Transmission of power body, this transmission of power body have the small gear that transmits rotating force from the output shaft of this starter motor motor, by movement gear ring and the described small gear of the power that transmits motor are intermittently meshed; Electromagnetic drive mechanism, this electromagnetic drive mechanism makes described transmission of power body move to the direction of described small gear and the engagement of described gear ring by energising; When cancel system, this cancel system surpass the rotating speed of described transmission of power body at the rotating speed of described gear ring, provide driving force that described transmission of power body is moved to the direction of the engagement of removing described small gear and described gear ring; Controller, this controller is controlled described electromagnetic drive mechanism, so that after the rotation of the bent axle of motor stops fully, to described electromagnetic drive mechanism energising, so that described transmission of power body moves.Because behind engine stop, because with respect to the outbreak of the movement of described transmission of power body firmly, keep the state of described small gear and described gear ring engagement, therefore can realize quick start engine, and do not need to arrange in addition the motor of plunger stopper etc., thereby can reduce the price of device.And, because at starter motor the plunger stopper is not set with it originally, so can improve the outfit to vehicle.
In addition, because described controller is after input rises through the stipulated time for the signal that makes engine stop, to described electromagnetic drive mechanism energising, so can make reliably small gear and gear ring engagement.
And, in the first embodiment, closed relay 51 behind engine stop, for the state that makes pinion gear teeth and gear ring 6 become engagement is controlled by controller 5, but also can to make to controller 5 input the signal of engine stop begin to motor is actual stop during this period of time in, pinion gear teeth and gear ring 6 are meshed.Motor begins till actual the stopping from the signal input controller 5 that stops usefulness, owing to the effect of inertia is rotated, even but this moment, gear ring 6 did not drive the rotation that starter motor motor 1 is also done low speed, if transmission of power body 2 is moved to gear ring 6 directions, even then do not make 1 rotation of starter motor motor also can realize the engagement of pinion gear teeth and gear ring 6.Like this, behind engine stop, the inharmonious sense that the driver causes in the time of can not feeling driving starter motor motor 1, and then, owing to can make the energising to rotor coil 12 be retained in inferior limit, so also can reduce the consumption of electric current.
In addition, because the rotation status of gear ring 6 is because making the front engine speed of engine stop different, so the rotating speed of the motor when controller 5 also can be inputted and be transfused to be used to the signal that makes engine stop changes to the moment of solenoid 35 energisings according to the rotating speed of this motor.Pinion gear teeth and gear ring 6 are meshed reliably.
In addition, in the first embodiment, after controller 5 inputs make the signal of engine stop, whether stop fully by judging through scheduled time about motor, but also can confirm that the rotation of the bent axle of motor stops fully, then opens relay 51 by the sensor of the rotation status that detects motor.So, pinion gear teeth and gear ring 6 are meshed reliably.
In addition, in the first embodiment, be provided with the detection device 78 whether detection pinion gear teeth and gear ring 6 have meshed, but as long as wait by experiment the time to rotor 12 energisings of knowing pinion gear teeth and gear ring 6 positive engagement, also can omit detection device 78.
In addition, in the first embodiment, although constitute the output shaft 17 and the rotation of rotor 13 one of starter motor motor 1, also can be by transfer mechanisms such as gear or pulleys, the rotation of rotor 13 passed to be independent of rotor 13 and the other output shaft 17 of setting.
In addition, in the first embodiment, although by the driving force of magnet contactor 7 transmission of power body 2 is moved, also can make output shaft 17 rotations of starter motor motor 1, utilize the inertial force of transmission of power body 2 to make small gear 22 to gear ring 6 one side shiftings.By such structure, also can omit magnet contactor 7.
[the second embodiment]
Below in conjunction with Fig. 9~Figure 11 the second embodiment of the present invention is described.Fig. 9 represents the circuit of the second embodiment's starter motor.Figure 10 is the control flow chart behind the second embodiment's the engine stop.Figure 11 is the control flow chart of the second embodiment's motor when again starting.And the position common with the first embodiment represents with same address, prosign.
The second embodiment, under the effect of the solenoid 31 of electromagnetic drive mechanism 3, moving contact 73 and battery side fixed contact 712 and motor side fixed contact 713 butts of magnet contactor 7,1 supplies with electric current from battery B to the starter motor motor, but different from the first embodiment, be provided with resistance 79 in motor side fixed contact 713 and 1 on starter motor motor.The size of this resistance 79 is arranged as follows, that is the output torque that, can satisfy to the electric current that starter motor motor 1 is supplied with starter motor motor 1 is greater than being used for making the required minimum load torque of gear ring 6 rotations and less than the required maximum load torque that is used for making gear ring 6 rotations.That is, with the electric current of supplying with through resistance 79, starter motor motor 1 can't make gear ring 6 rotating 360 degrees.
In addition, the second embodiment also has the second magnet contactor 8 except magnet contactor 7.This second magnet contactor 8 is the same as 82 drivings of the second solenoid with magnet contactor 7, this second magnet contactor 8 also has the second relay 81, switch between 81 pairs of these second solenoidal the second solenoids 83 of this second relay and battery B, make between the two and between on state and nonconducting state, switch.Therefore, if be used for making the signal of its conducting to 81 outputs of the second relay from controller 5, then supply with electric current from battery B to the second solenoid 83, the same with magnet contactor 7, the second moving contact 84 contacts with the second motor side fixed contact 85 with the second battery side fixed contact 86, thereby 1 supplies with electric current from battery B to the starter motor motor.Because between this second motor side fixed contact 85 and starter motor motor 1, special resistance is not set, so compare when contacting with motor side fixed contact 713 with battery side fixed contact 712 with the moving contact 73 of magnet contactor 7, have larger electric current to pass through.That is, compare when connecting with magnet contactor 7, the output torque of the starter motor motor 1 when the second magnet contactor 8 is connected becomes large.Therefore, if 8 connections of the second magnet contactor, then because the torque of exporting from starter motor motor 1 makes the required peak torque of gear ring 6 rotations greater than being used for, so can make more than gear ring 6 rotating 360 degrees.
Aforesaid the second embodiment, with respect to the first embodiment, although also be provided with resistance 79 and the second magnet contactor 8, but resistance 79 and the second magnet contactor 8, owing to be arranged on the place different from starter motor such as Fig. 1~shown in Figure 3, so the structure of starter motor itself is almost identical with the first embodiment.
Describe below in conjunction with the work to the second embodiment of the control flow chart of Fig. 8, about the structure of starter motor, since basic identical with the first embodiment, so describe in conjunction with Fig. 1~Fig. 3.
At first, when motor is in operating state, because relay 51 and relay 81 become nonconducting state, do not supply with electric current to solenoid 35 and the second solenoid 83, so controlling rod 32 is not according to pressure power carrier 2, small gear 22 separates from gear ring 6.In addition, moving contact 73 also leaves from battery side fixed contact 712 and motor side fixed contact 713.So, do not supply with electric current to the rotor coil 12 of starter motor motor 1 yet.
Here, make in the situation of engine stop, disconnect the ignition mechanism switch in order to make engine stop, the rotating speed that perhaps satisfies motor be racing speed the state continuance stipulated time without dry run condition the time, shown in the step S111 of Figure 10, input the signal that makes engine stop to controller 5, enter step S112.
In step S112, judge whether through until the stipulated time that motor stops fully, judging in the situation of having passed through the stipulated time, enter step S113, be used for making relay 51 become the signal of on state from controller 5 outputs, make battery B and solenoid 35 become on state.By to solenoid 35 energising, the same with the first embodiment, controlling rod 32 is accompanied by the movement of movable core 33 and swings, and the transmission of power body 2 with small gear 22 moves to the direction of gear ring 6.
At this, if the position of the pinion gear teeth of the position of the tooth of gear ring 6 and small gear 22 matches, then gear ring 6 is meshed with pinion gear teeth, be connected at the front end of small gear 22 under the state of stopper 113 and stop, in the situation that both misfit, small gear 22 is connected to the side of gear ring 6 and stops at the state that is pressed.At this moment because be provided with detect small gear 22 whether with the detection device 78 of stopper 113 butts, so in pinion gear teeth and situation that gear ring 6 is meshed, to controller 5 output signals, the engagement of judgement pinion gear teeth and gear ring 6 in step S114.At this, in the situation of the signal that is meshed with gear ring 6 to controller 5 input pinion gear teeths, enter step S115, in the situation of the signal that is not meshed with gear ring 6 to controller 5 input pinion gear teeths, continue to keep the "on" position to solenoid 35.
In addition, follow to the energising of solenoid 35, moving contact 73 and battery side fixed contact 712 and motor side fixed contact 713 side butts, 1 supplies with electric current from battery B to the starter motor motor, but because be provided with resistance 79 in motor side fixed contact 713 and 1 on starter motor motor, so starter motor motor 1 is prepared energising with little electric current.
By this preparation energising, transmit rotating forces from the output shaft 17 of starter motor motor 1 to small gear 22, in the moment that the tooth of the tooth of small gear and gear ring 6 coincide, small gear 22 move vertically until with stopper 113 butts, pinion gear teeth is meshed with gear ring 6.By this action, 5 output pinion teeth and the signal that gear ring 6 is meshed enter step S115 from detection device 78 to controller.
And, by the preparation energising, although small gear 22 rotations, because starter motor motor 1 is energized with little electric current, so under the effect that is slightly less than the torque that makes the required maximum load torque of gear ring 6 rotations, 1 rotation of starter motor motor.Therefore, become at the rotary load of motor near the angle of maximum gear ring 6, the output torque of starter motor motor 1 is not enough, can not make gear ring 6 rotations, thereby small gear 22 stops in this position.
In step S115, whether detect the position of gear ring 6 at assigned position, when assigned position, enter step S116, closed relay 51 stops to solenoid 35 energisings.In addition, in step S115, during not at assigned position, continue to keep the opening state of relay 51 in the position of gear ring 6.
Here the assigned position of said gear ring 6 is the position of mean engine piston more top stop one side of ratio lower dead center and the neutral position between top dead center between from the lower dead center to the top dead center in compression stroke, the preferably position slightly more forward than top dead center.Motor, in the compression stroke of Aspirating valves and exhaust valve closure, the top dead center front is the position that acts on the load maximum on the bent axle, starter motor motor 1 is owing to the position that the preparation energising stops is the position of the top dead center front of the piston in the compression stroke.In step S115, position for gear ring 6, do not need to arrange in addition sensor, can or detect the information of the cam-angle sensor output of camshaft angle according to the crankshaft angle sensor that originally is installed in the detection engine crank angle on the motor, the position of gear ring 6 is detected.And in having the motor of a plurality of cylinders, although the position of the piston of each cylinder is different, in the case, piston is the position of load torque maximum in the position between from the lower dead center to the top dead center on average.
Like this in a second embodiment, because make the position of gear ring 6 stop at the position of the load maximum of motor, so behind engine stop, bent axle does not rotate substantially, even not under the state of solenoid 35 energisings, also can keep the engagement of pinion gear teeth and gear ring 6.And, shown in the first embodiment, even do not increase the angle of inclination of the helical tooth of helical spline engagement portion, also can keep the engagement of pinion gear teeth and gear ring 6.
Flow chart below in conjunction with Figure 11 describes to again piloting engine from halted state motor.Motor is in halted state in step S117, judges at step S118 whether the ignition mechanism switch is connected.In the situation of judging the ignition mechanism switch connection, enter step S120, input the signal that motor is restarted to controller 5.In addition, in step S118, in the situation of not judging the ignition mechanism switch connection, enter step S119, judge whether to satisfy the condition of removing without idle running.In the situation that satisfies the condition of removing nothing idle running, enter step S120, not satisfying in the situation about removing without the condition that dallies, return the state that step S117 keeps engine stop.
In step S120, if input the signal that motor is restarted to controller 5, then enter step S121 and open relay 51.And, in step S122, whether meshed by detection device 78 detection pinion gear teeths and gear ring 6, judging in the situation of engagement, enter step S123 closed relay 51.In addition, in the situation of not judging pinion gear teeth and gear ring 6 engagements, keep the opening state of relay 51.And, in the second embodiment's situation, because pinion gear teeth is meshed with gear ring 6 when engine stop, so also can omit step S121~step S123, but just in case for a certain reason when having removed the engagement of pinion gear teeth and gear ring 6, because motor can not be restarted, so carry out in view of Security.
Behind step S123, enter step S124, then open the second relay 81.Thus, battery B and 83 of the second solenoids become on state, supply with electric current to the second solenoid 83.Thus, the second moving contact 84 contacts with the second battery side fixed contact 86 and the second motor side fixed contact 85, and the rotor coil 12 from battery B to starter motor motor 1 is supplied with electric current, output shaft 17 rotations of starter motor motor 1, follow in this small gear 22 and gear ring 6 rotations.
Next in step S125, judge whether motor starts, in the situation that motor has started, enter step S126, close the second relay 81, stop to the second solenoid 83 and rotor coil 12 energisings.And, whether start about motor, the same with the first embodiment, consider to detect engine speed, during the stipulated time, judge that motor starts at the state continuance of engine speed more than the regulation rotating speed.
In addition, although in the flow chart of Figure 11, omit, in step S125, when in any case motor also can not start, for the voltage that makes battery B does not reduce, if through the stipulated time, then automatically repeatedly close the second relay 81, again open the operation of the second relay 81.Even also not starting in the situation of motor like this, just can send the alarm of abnormal conditions.In addition, in the situation that the driver will pilot engine by connecting the ignition mechanism switch when engine start, owing to the ignition mechanism switch disconnects, so the second relay 81 also cuts out.
More than the second embodiment's structure and action is illustrated, the below describes the second embodiment's action effect.
The second embodiment is be used to the starter motor of piloting engine, and comprising: the starter motor motor, and this starter motor motor comes the rotation of driver output axle by supplying with electric current; Transmission of power body, this transmission of power body have the small gear that transmits rotating force from the output shaft of this starter motor motor, by movement gear ring and the described small gear of the power that transmits motor are intermittently meshed; Electromagnetic drive mechanism, this electromagnetic drive mechanism makes described transmission of power body move to the direction of described small gear and the engagement of described gear ring by energising; When cancel system, this cancel system surpass the rotating speed of described transmission of power body at the rotating speed of described gear ring, provide driving force that described transmission of power body is moved to the direction of the engagement of removing described small gear and described gear ring; Controller, this controller control are for the described electromagnetic drive mechanism that described transmission of power body is moved, so that described small gear and the engagement of described gear ring when engine stop.Motor is under described small gear and state that described gear ring is meshed, because piston stops at lower dead center between the top dead center in compression stroke, so can realize quick start engine.In addition, starter motor itself is because namely use existing device also can make gear ring stop at the position of load torque maximum, so can keep the state of small gear and gear ring engagement.And, although need other magnet contactor in order to make gear ring stop at the large position of load torque, because of needn't being wholely set with starter motor, so improved assembling to vehicle.
And motor preferably stops at the position that more relies on top dead center one side than the neutral position of lower dead center and top dead center, and preferably stops at the top dead center front.Like this, can further keep reliably the engagement of small gear and gear ring.
In addition, in a second embodiment, engine stop, under the state of described small gear and the engagement of described gear ring, under less than the maximum load torque that is used for making engine revolution, greater than the torque for the minimum load torque that makes engine revolution, drive described starter motor motor, therefore, can easily make gear ring stop at the position of regulation.
In addition, behind engine stop, described starter motor motor stops the rotation the state that drives with "on" position under, if by stopping to described starter motor motor energising, then make gear ring stop at the position of regulation, then can more easily make gear ring stop at the position of regulation.
In addition, if have the crankshaft angle sensor of the crankshaft angles that detects motor, crankshaft angles under the state that described starter motor motor is switched on stops the rotation the state that drives, become under the state of the angle of piston between from the lower dead center to the top dead center, stop then can further to keep reliably the engagement of small gear and gear ring to described starter motor motor energising.In addition, cam-angle sensor with the cam angle degree that detects motor, cam angle degree described starter motor motor is stopping the rotation the state that drives under the "on" position under, also can further keep reliably the engagement of small gear and gear ring for stopping under the state of compression stroke to described starter motor motor energising.And, if consider reliability, preferably jointly detect the position of gear ring according to the information of the information of crankshaft angle sensor and cam-angle sensor.
And, in a second embodiment, although adopted two magnet contactors, as long as but can whether be in the compression stroke according to position and the motor that crankshaft angle sensor and cam-angle sensor etc. detects gear ring, then by the rotational position to controller feedback gear ring, namely use a magnet contactor also to can be implemented in and make piston stop near the position of top dead center in the compression stroke.In addition, in situation about not using from the information of sensor, make to the energising of starter motor motor variablely as long as can wait by PWM control, then namely use a magnet contactor also to can be implemented in to make in the compression stroke piston to stop near the top dead center position.
In addition, variation as the second embodiment, as shown in figure 12, in the situation in moment of output shaft 17 rotations of moment of the movement that needs Set arbitrarily small gear 22 and starter motor motor 1, on the basis of the second embodiment's structure, also consider to use three solenoid 87, the 3rd magnet contactor 89 and the 3rd relay 88.By such structure, can realize trickle adjustment, can alleviate as much as possible driver's inharmonious sense.

Claims (7)

1. one kind is used for the starter motor pilot engine, it is characterized in that having:
The starter motor motor drives the output shaft rotation of this starter motor motor by supplying with electric current;
Transmission of power body, this transmission of power body have the small gear that transmits rotating force from the output shaft of this starter motor motor, and by mobile and can make the engagement of the gear ring of the power that transmits motor and described small gear interrupted;
Electromagnetic drive mechanism, this electromagnetic drive mechanism makes described transmission of power body move to the direction of described small gear and the engagement of described gear ring by energising; And
When cancel system, this cancel system surpass the rotating speed of described transmission of power body at the rotating speed of described gear ring, provide driving force that described transmission of power body is moved to the direction of the engagement of removing described small gear and described gear ring,
The output shaft that described transmission of power body constitutes at described starter motor motor slides,
Transmit between the base portion and described small gear of rotating force at the output shaft from described starter motor motor on the described transmission of power body, be provided with the one direction clutch of the direction transmission rotating force from described base portion to described small gear, this one direction clutch rotates to described base portion transmission from described small gear under the effect of slip resistance
Periphery at the output shaft of described starter motor motor is provided with the first helical spline,
At second helical spline that is provided with in interior week of described transmission of power body,
Has the helical spline engagement portion that is consisted of by described the first helical spline and described the second helical spline.
2. starter motor as claimed in claim 1 is characterized in that:
Described cancel system when the rotating speed of described gear ring surpasses the rotating speed of described small gear, is removed the engagement of described small gear and described gear ring by described helical spline engagement portion and described one direction clutch.
3. starter motor as claimed in claim 2 is characterized in that:
Described electromagnetic drive mechanism is made of movable core, fixed iron core and coil, described movable core passes through to described coil electricity and to fixed iron core one side shifting, thus controlling rod with described transmission of power body by pressing to the direction that moves towards described gear ring, when stopping to described coil electricity, described movable core and described transmission of power body are accepted the power of the Return-ing direction of Returnning spring generation.
4. starter motor as claimed in claim 3 is characterized in that:
Be L in the length of action of establishing described small gear and described gear ring, and establish the length that described transmission of power body can be moved because of backlash when being S, the tilt angle theta of described the first helical spline and the second helical spline is to satisfy the angle of the condition of L>S/tan θ.
5. such as each the described starter motor in the claim 1 to 4, it is characterized in that:
Also have controller, this controller is controlled described electromagnetic drive mechanism so that after the rotation of the bent axle of motor stops fully to described electromagnetic drive mechanism energising so that described transmission of power body moves,
Described controller is used for the signal of engine stop is begun through after the stipulated time from input, to described electromagnetic drive mechanism energising.
6. starter motor as claimed in claim 5 is characterized in that:
Engine speed when described controller input is transfused to for the signal that makes engine stop makes to the moment of described electromagnetic drive mechanism energising variable according to this engine speed.
7. starter motor as claimed in claim 5 is characterized in that:
Described controller is after the sensor of the rotation status by detecting motor has confirmed that the rotation of the bent axle of motor stops fully, to described electromagnetic drive mechanism energising.
CN201310239039.4A 2006-12-28 2007-12-24 Starter motor Active CN103375323B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2006353645A JP2008163818A (en) 2006-12-28 2006-12-28 Starter
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CN103375323B (en) 2015-12-23
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US20080162007A1 (en) 2008-07-03
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